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Extron electronics AXP 50 C AT User Manual

Extron electronics AXP 50 C AT User Manual

Audio expansion processor
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User Guide
Audio Products
Mixers and Processors
AXP 50 C AT
Audio Expansion Processor
68-2251-01 Rev. A
07 14

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  • Page 1 User Guide Audio Products Mixers and Processors AXP 50 C AT Audio Expansion Processor 68-2251-01 Rev. A 07 14...

  • Page 2: Safety Instructions

    Safety Instructions Safety Instructions • English Инструкция по технике безопасности • Русский WARNING: This symbol, , when used on the product, is intended to ПРЕДУПРЕЖДЕНИЕ: Данный символ, , если указан alert the user of the presence of uninsulated dangerous voltage within the на...
  • Page 3 “ Extron Safety and Regulatory ” on the Extron website. Compliance Guide Copyright © 2014 Extron Electronics. All rights reserved. Trademarks All trademarks mentioned in this guide are the properties of their respective owners. ® The following registered trademarks...
  • Page 4 Conventions Used in this Guide Notifications The following notifications are used in this guide: ATTENTION: • Risk of property damage. • Risque de dommages matériels. NOTE: A note draws attention to important information. Software Commands Commands are written in the fonts shown here: ^AR Merge Scene,,Op1 scene 1,1 ^B 51 ^W^C [01] R 0004 00300 00400 00800 00600 [02] 35 [17] [03] E X! *X1&* X2)* X2#* X2!

  • Page 5: Table Of Contents

    Contents Input Channels ..........31 Introduction ............1 Input Gain ............. 32 About this Guide ..........1 Filter Block ............ 33 About the AXP 50 C AT ........1 Acoustic Echo Cancellation (AEC) ....37 Features ............. 1 Advanced AEC Controls ....... 39 AXP 50 C AT Application Diagram ......
  • Page 6 Remote Communication and Control ... 66 Connection Options .......... 66 To Establish a Network Connection ....67 AXP 50 C AT-initiated Messages ....68 Using the Command/Response Tables ..68 Error Responses ........... 69 Command/Response Table Overview ....69 Command/Response Table for Basic SIS Commands .............

  • Page 7: Introduction

    Introduction This section describes this guide and features of the AXP 50 C AT Audio Expansion Processor, including: About this Guide About the AXP 50 C AT Features AXP 50 C AT Application Diagram About this Guide This guide contains installation, configuration, and operation information for the Extron Electronics AXP 50 C AT, Audio Expansion Processor.
  • Page 8 FlexInput Channels – Each input on the AXP 50 C AT offers FlexInput capability to route a Dante channel in place of a local mic/line input. The flexible input selection enables the AXP 50 C AT to process audio from remote wireless microphones, wallplates, and other sources from anywhere on the Dante network.
  • Page 9 Flexible control options – The AXP 50 C AT can be controlled using the DSP • Configurator Software and a PC connection to the Ethernet port. The AXP 50 C AT can also be controlled through a control system with Extron SIS - Simple Instruction Set commands.

  • Page 10: Axp 50 C At Application Diagram

    01 02 IN G 01 02 IN G 01 02 IN G 01 02 IN G 01 02 Extron 1.0A MAX RESET AXP 50 C AT AXP 50 C AT Digital Audio Processor IN G 01 02 IN G 01 02 IN G 01 02...

  • Page 11: Panels And Cabling

    Panels and Cabling This section describes the front and rear panel features and the rear panel connections and includes the following topics: • Mounting the AXP 50 C AT • Hardware Configuration Rear Panel Features and Cabling • • Control Connection Power Cycle •...

  • Page 12: Rear Panel Features And Cabling

    Rear Panel Features and Cabling 12 VDC Power input. Four RJ-45 Ethernet connectors. The 4-port switch (labeled AT) supports both digital audio and control. Five 3.5 mm, 4-pole captive screw Reset button. connectors for digital I/O trigger and tally out. Five 3.5 mm, 3-pole captive screw connectors for analog mic or line audio input.
  • Page 13 ATTENTION: • Always use a power supply provided by or specified by Extron. Use of an unauthorized power supply voids all regulatory compliance certification and may cause damage to the supply and the end product. • Utilisez toujours une source d’alimentation fournie par Extron. L’utilisation d’une source d’alimentation non autorisée annule toute conformité...

  • Page 14: Control Connection

    Mic/Line 1-5 input connectors — Connect up to five balanced or unbalanced microphone or mono line level devices using the 3-pole 3.5 mm captive screw connectors. Wire as shown below. Audio Input Wiring Ring Sleeve Sleeve Balanced Input Unbalanced Input Figure 3. Balanced or Unbalanced Mic and Line Input Wiring Phantom power —...

  • Page 15: Power Cycle

    Power Cycle Current mixing and audio processor settings—the current state of the device—are saved in nonvolatile memory. When the unit is powered off, all settings are retained. When the unit is powered back on, it recalls settings from the nonvolatile memory. If a configuration is in process during the power down, the saved audio level and audio DSP processor settings become active.

  • Page 16: Front Panel Indicators

    Front Panel Indicators Figure 4. AXP 50 C AT Front Panel Power LED — Lights solid green when the device is powered. Blinks green during bootup or during a firmware update. Input Signal Indicators — Light when there is an active source on the corresponding input.

  • Page 17: Software Installation

    Software Installation This section describes the software requirements and installation and includes the following topics: • AXP 50 C AT Software • Software Installation Overview Software Download and Installation • AXP 50 C AT Software There are no hardware controls for the AXP 50 C AT. Configuration and operation are accomplished using a PC running Microsoft Windows 7 or newer and the DSP Configurator software.

  • Page 18: Software Download And Installation

    Software Download and Installation Both DSP Configurator and Dante Controller must be installed to configure the AXP 50 C AT and route transmit and receive channels. Dante Controller for Windows From the Extron Electronics Web page at www.extron.com, enter       in the search field and press <Enter>.
  • Page 19 When the file download is complete, double-click the Dante Controller icon on your desktop or double-click the file downloaded in step 5 to begin the installation. The Security Warning dialog opens. Click Read the EULA, and place a checkmark in the agreement box, then click Install The Dante Controller Setup dialog opens and the program begins installing.

  • Page 20: Rename Connected Axp 50 C At Devices

    When the installation completes, click to begin using Dante Controller. If Launch connecting to an AXP 50 C AT for the first time, click Close Dante Controller installation is complete. Rename Connected AXP 50 C AT Devices Dante Controller auto-discovers all Dante devices on the network and advertises itself to allow other Dante-enabled devices to communicate with it.
  • Page 21 From the toolbar, select Device>Device View The Dante Controller - Device View dialog box opens Select the AXP 50 C AT from the drop-down list. (Select a Dante Device...) AXP50- 063f70 AXP50-063f70 AXP50-Lecture Hall AXP50-ConfRm 01 AXP50-ConfRm 02 AXP50-Podium DMP128-Rack #1 DMP128-Lecture Hall DMP128-Rack #2 The Device View dialog populates with the selected AXP 50 C AT information.
  • Page 22 On the Device Config page, click Apply A warning dialog opens. AXP50-Lab Renaming a device breaks existing audio routes from this device to other devices. Are you sure you want to rename AXP50-063f70 to AXP50-Lab? Click to enter the new name, then close the Device Config dialog. The new name is written to the AXP 50 C AT.

  • Page 23: Dsp Configurator

    DSP Configurator To download DSP Configurator: Repeat step 1 and step 2 from Dante Controller for Windows on page 12. The Download Center page opens. Click DSP Configurator The Download Center page opens. Figure 7. Download Center - Download DSP Configurator Fill in the required fields, then click Download Save the DSP Configurator file to your desktop (or other known location).
  • Page 24 Install the software as follows: Click the file to launch the installation program. Follow the on-screen instructions. By default, the installation creates a folder for the DSP Configurator C:\Program Files\Extron\DSP_Configurator program. NOTE: Although USB drivers are not needed for the AXP 50 C AT, during the installation of DSP Configurator, a USB driver also loads.
  • Page 25 After the USB driver installation, the DSP Configurator program installation continues to completion. To launch the software click     Start>Extron Electronics>DSP Configurator>DSP Configurator AXP 50 C AT • Software Installation...

  • Page 26: Dsp Configurator Configuration And Operation

    Use the dynamics processors for level control or system protection. AEC features advanced algorithms that deliver fast echo cancel convergence for optimal intelligibility in situations that challenge performance, including double-talk, and the use of wireless microphones at the near end. AXP 50 C AT • DSP Configurator – Configuration and Operation...

  • Page 27: Dsp Configurator Program Basics

    AXP 50 C AT for real-time auditioning of the audio output as adjustments are made. The main screen contains controls for the input and output channels and provides access to all features of the AXP 50 C AT. AXP 50 C AT • DSP Configurator – Configuration and Operation...

  • Page 28: Navigation

    The main screen is separated into segments as shown in figure 10. Navigation There are two methods of navigation around the screen: • Keyboard • Mouse AXP 50 C AT • DSP Configurator – Configuration and Operation...
  • Page 29 <Ctrl+X> — Cut the selected elements. <Ctrl+C> — Copy the selected elements. <Ctrl+V> — Paste the selected elements from a previous cut or copy. <Ctrl+A> — Highlights all processor blocks. AXP 50 C AT • DSP Configurator – Configuration and Operation...
  • Page 30 Edit>Paste NOTE: The elements can be pasted to multiple locations. To copy the clipboard to an additional location, click on the leftmost block in the new location and paste. AXP 50 C AT • DSP Configurator – Configuration and Operation...

  • Page 31: Toolbar Menus

    — Saves all changes to the current DSP configuration file under a new file Save As name. • — Opens a list of recently opened or saved DSP configuration files. Recent Files • — Closes the DSP Configurator Program. Exit AXP 50 C AT • DSP Configurator – Configuration and Operation...

  • Page 32: Edit Menu

    — Opens a dialog box to enable selection of the real-time meters for any AT AT Meters device on the AT bus. Select the device to open the meters. Figure 12. AT Meters AXP 50 C AT • DSP Configurator – Configuration and Operation...
  • Page 33 The Unit Info tab contains hardware information about the device. The Dante Device tab displays the Dante name and allows a search for Dante-compatible devices on the same network. AXP 50 C AT • DSP Configurator – Configuration and Operation...
  • Page 34 To view the individual processor defaults, press [ ] to the left of the processor, • trim, gain, or meter device. • — Launches Dante Controller. Network Audio Control AXP 50 C AT • DSP Configurator – Configuration and Operation...

  • Page 35: Mode Buttons

    NOTE: Help can be activated via the F1 key from any main screen or dialog (which accesses context sensitive Help). Mode Buttons Provides selection between Live mode and Emulate mode. AXP 50 C AT • DSP Configurator – Configuration and Operation...

  • Page 36: Dsp Processing And Signal Flow

    Mute — When a level block is muted, all signal flow is blocked. When mute is active a red mark appears in the lower left of the block (see below). AXP 50 C AT • DSP Configurator – Configuration and Operation...

  • Page 37: Output Channels

    (the range of loudest to softest signals) of the input signal. • Gain (GAIN) — One post-processing gain control per channel with a range of -100 dB to +12 dB. The step resolution is 0.1 dB. AXP 50 C AT • DSP Configurator – Configuration and Operation...

  • Page 38: Input Gain

    The input gain icon changes from ANG GAIN to DIG GAIN GAIN GAIN GAIN GAIN GAIN GAIN GAIN GAIN GAIN GAIN GAIN GAIN GAIN GAIN Analog Digital Analog Digital Input Input Input Input AXP 50 C AT • DSP Configurator – Configuration and Operation...

  • Page 39: Filter Block

    Figure 14. Filter Block Dialog Box To add filters, open the filter block dialog box and select a filter type from the drop-down filter selection list from any unused row. AXP 50 C AT • DSP Configurator – Configuration and Operation...
  • Page 40 Click a handle or click the table row to bring focus to that filter. <Click+hold+drag> the handle horizontally to change the cutoff or center frequency to a new position along the X axis. AXP 50 C AT • DSP Configurator – Configuration and Operation...
  • Page 41 All Parametric Filters Active The overall frequency response is now a solid red line in figure 18. The parametric filter allows frequency selection accurate to 0.1 Hz and + 24 dB of slope. AXP 50 C AT • DSP Configurator – Configuration and Operation...
  • Page 42 Low Pass Filter Response Curve The frequency range of the both low and high pass filters is 20 to 20K with selectable slope of either 6 or 12 dB per octave. AXP 50 C AT • DSP Configurator – Configuration and Operation...

  • Page 43: Acoustic Echo Cancellation (Aec)

    AXP 50 C AT • DSP Configurator – Configuration and Operation...
  • Page 44 AEC algorithm, not including NLP processing (see Processing (NLP) Controls on page 39), cancels. • TER – Displays the sum of ERL + ERLE, in dB. Reference The AEC reference input is selected using Dante Controller. AXP 50 C AT • DSP Configurator – Configuration and Operation...

  • Page 45: Advanced Aec Controls

    Comfort Noise – Sets a comfort noise level in dB to eliminate states of complete silence, which could be perceived as a failed connection. The range is 0.0 to 40.0 dB in 0.1 dB increments. Default is 0.0 dB (comfort noise off). AXP 50 C AT • DSP Configurator – Configuration and Operation...

  • Page 46: Basic Aec Configuration

    Check gain staging of the microphones. Be certain you are receiving a strong signal in the -30 to -20 dB range. Check the ERL level. If necessary, readjust with the input reference level. • AXP 50 C AT • DSP Configurator – Configuration and Operation...

  • Page 47: Dynamics Processor

    0.0 ms 100.0 ms 50.0 ms 300.0 ms Release Time 1500.0 ms 100.0 ms 50.0 ms 1000.0 ms Max. Attenuation 25.0 dB Soft Knee Details of the individual dynamics blocks follow. AXP 50 C AT • DSP Configurator – Configuration and Operation...
  • Page 48 Release time begins only after hold time is reached. Release time is adjusted from 10.0 to 10000.0 ms in 0.1 ms increments. Default is 1500.0 ms. AXP 50 C AT • DSP Configurator – Configuration and Operation...
  • Page 49 Default is 100.0 ms. Soft Knee — Click the Soft Knee check box to smooth and soften the transition from uncompressed to compressed output levels. There are no adjustments. AXP 50 C AT • DSP Configurator – Configuration and Operation...
  • Page 50 Default is 50.0 ms. Soft Knee — Click the Soft Knee check box to smooth and soften the transition from uncompressed to compressed output levels. There are no adjustments. AXP 50 C AT • DSP Configurator – Configuration and Operation...

  • Page 51: Noise Gate

    Release time begins only after hold time is reached. Release time can be adjusted from 10 to 1000.0 ms in 0.1 ms increments. Default is 1000.0 ms. AXP 50 C AT • DSP Configurator – Configuration and Operation...

  • Page 52: Output Gain (Gain)

    <Page Up> increases and <Page Down> decreases the level in 5 dB steps. • Click in or <tab> to the level readout field. Type a new value, then press <Enter> or <tab> to another area. AXP 50 C AT • DSP Configurator – Configuration and Operation...

  • Page 53: Digital I/O

    Toggle Trigger - Lo to Hi Toggles Mute/Unmute – A logic signal change from low to high toggles the corresponding input from mute to unmute, or unmute to mute. AXP 50 C AT • DSP Configurator – Configuration and Operation...
  • Page 54 Unmute Hi (LED lit) – When the corresponding input is unmuted, whether by an input to the Digital I/O or from other control actions, this digital output signal is Hi. AXP 50 C AT • DSP Configurator – Configuration and Operation...
  • Page 55 LED indicator. At the same time, the unmuted input condition switches O1 low, turning off the red LED. Various combinations of input and output logic in this manner can accomplish a great number of configurations. AXP 50 C AT • DSP Configurator – Configuration and Operation...

  • Page 56: Signal Path Building Blocks

    The input channel loads the pre-configured processor blocks and sets the gain. Input Channel, No Processing Input Channel, Microphone Building Block Added The building blocks can be renamed and processor blocks further customized according to the requirements of the system. AXP 50 C AT • DSP Configurator – Configuration and Operation...

  • Page 57: Add A Building Block

    Select a folder for the new device, or create a new folder (see above). Click The new mic configuration is now a building block used to quickly configure new devices. AXP 50 C AT • DSP Configurator – Configuration and Operation...
  • Page 58 A dialog box prompts to warn the new building block will overwrite an existing configuration. Click The new mic configuration overwrites the existing template and is ready to use. AXP 50 C AT • DSP Configurator – Configuration and Operation...

  • Page 59: Organize Building Blocks

    To move a building block or a folder, click and drag the desired item to the new location. Click beside the folder name to expand the view of the associated building blocks. AXP 50 C AT • DSP Configurator – Configuration and Operation...
  • Page 60 Browse to the location where the file is to be saved. In the field, leave the current file name or enter a new file name. File name Click Save AXP 50 C AT • DSP Configurator – Configuration and Operation...
  • Page 61 “Import from...” dialog box opens. Browse to and select the desired building blocks file. Click . The selected building blocks file is Open imported into the Organize Building Blocks dialog box. AXP 50 C AT • DSP Configurator – Configuration and Operation...

  • Page 62: Dante Configuration And Operation

    Dante Configuration and Operation This section describes the AXP 50 C AT network installation, configuration, and control using Dante Controller for Windows and includes: • AXP 50 AT Bus • Creating a Physical Dante Network • Dante Controller Configuration • Selecting Inputs and Outputs for Dante Signal Routing with Dante •...

  • Page 63: Creating A Physical Dante Network

    A daisy chain configuration can also be used. Each unit is connected to both the previous unit and the next unit in the chain (see figure 28). DMP 128 AT AXP 50 C AT #1 AXP 50 C AT #2 AXP 50 C AT #3...

  • Page 64: Dante Controller Operation

    Dante Controller Operation The Dante Controller auto-discovers all Dante devices on the network and advertises itself to allow other Dante-enabled devices to communicate with it. The default device name of the AXP 50 C AT is the model number followed by the last six digits of the MAC address (Example:  ...

  • Page 65: Dante Controller Configuration

    Dante Controller Configuration After the AXP 50 C ATs are configured for network operation and the Dante software is installed, Dante Controller must be configured. Start Dante Controller To launch Dante Controller from the start menu, select All Programs > Audinate > Dante Controller >...
  • Page 66 When the network scan is compete, Dante Controller opens in Network View. Dante Transmitters Dante Receivers AXP50-Lab AXP50-Lecture Hall AXP50-ConfRm 01 AXP50-ConfRm 02 AXP50-Podium DMP128-Rack#1 DMP128-Lecture Hall DMP128-Rack#2 DMP128-Rack#3 Connection Points Figure 30. Dante Network View Receivers, representing Dante device inputs, are on the left side running vertically. Transmitters, representing Dante device outputs, are along the top running horizontally.

  • Page 67: Dante Network Organization

    Dante Network Organization Dante network connection points can quickly become unmanageable in large systems. To better organize the various inputs and outputs, it is recommended you name each input and each output using descriptions of the device they belong to, the location of the device, or the purpose of the input or output.
  • Page 68 To rename an output: Follow steps 1 and 2 in the previous procedure. From , select the tab. Device View Transmit The transmit tab has a column for naming the outputs. Click inside the   Channel Label text box to rename an output. A cursor appears. Type a new name (up to 30 characters) using any combination of letters, numbers, and special characters.

  • Page 69: Selecting Inputs And Outputs For Dante

    Two sections receive input signals from Dante network transmitters: the digital inputs and the AEC reference inputs (see figure 32, , and -AEC). DSP Con gurator - DSPcon g1 AXP 50 C AT Current Emulation Pre-Processing AT Outputs PreProcOut#1 PreProcOut#2...

  • Page 70: Signal Routing With Dante

    Signal Routing with Dante Channels either transmitted to the network, or received from the network are routed using the main Dante network view (see figure 33). AXP50-Lab AXP50-Lecture Hall DIGITAL_IN-01 AXP50-ConfRm 01 AXP50-ConfRm 02 AXP50-Podium DMP128-Rack#1 DMP128-Lecture Hall DMP128-Rack#2 DMP128-Rack#3 Figure 33.

  • Page 71: Dante Troubleshooting

    Dante Troubleshooting The most common Dante troubleshooting issues occur when no devices are discovered by the Dante Controller software, or routing is not successful or is prevented. Both issues occur when software is not able to properly discover devices operating on the Dante network. Before moving into more difficult troubleshooting, shut down Dante Controller and re-seat the Ethernet cable connecting the PC to the Dante network.

  • Page 72: Remote Communication And Control

    DSP Configurator, see DSP Configurator Configuration and Operation on page 20. SIS commands can be executed using the Extron Electronics DataViewer program, which can be found on the website. Any rear panel AT connector can be connected to an Ethernet LAN or WAN.

  • Page 73: To Establish A Network Connection

    To Establish a Network Connection To establish a network connection with the AXP 50 C AT, the control device must be connected to the same network. Communication between the AXP 50 C AT and a controlling device or software such as DataViewer is via the device IP address using port 4333.

  • Page 74: Axp 50 C At-Initiated Messages

    The AXP 50 C AT-initiated messages are listed here (underlined).       © Copyright 2014, Extron Electronics, AXP AT, Vn.nn, 60‑1325‑01 Vn.nn is the firmware version number. The AXP 50 C AT sends the boot and copyright messages under the following circumstance: If the AXP 50 C AT is off and DataViewer is set up and running (the PC is cabled to the...

  • Page 75: Error Responses

    Error Responses When the AXP 50 C AT is unable to execute the command, it returns an error response to the host. The error response codes and their descriptions are as follows: Description Code Invalid command Invalid preset Invalid port number Invalid parameter (number is out of range) Not valid for this configuration System timed out Busy...

  • Page 76: Command/Response Table For Basic Sis Commands

    Unit name Text string up to 24 characters X& Unit name (default) AXP 50 C AT Version number Listed to two decimal places (for example, x.xx) Special Characters The HTML language reserves certain characters for specific functions. The device will not accept these characters as part of preset names, the device name, or locally created file names.

  • Page 77: Command/Response Tables For Dsp Sis Commands

    SIS commands. NOTE: The entire signal flow is described in more detail in the section, DSP Processing and Signal Flow on page 30. DSP Con gurator - DSPcon g1 AXP 50 C AT Current Emulation Pre-Processing AT Outputs PreProcOut#1...

  • Page 78: Symbol Definitions

    Symbol Definitions CR/LF (carriage return/line feed) (hex 0D 0A) Carriage return (no line feed, hex 0D) (use the pipe character, , for Web browser commands)) Space character • Pipe (vertical bar) character Escape key (hex 1B) Processor block or gain control select Table 1 on page 72.

  • Page 79: Special Characters

    Special Characters The HTML language reserves certain characters for specific functions. The device will not accept these characters as part of preset names, the device name, passwords, or locally created file names. The AXP 50 C AT rejects the following characters: {space (spaces are OK for names)} + } ~ , @ = ‘ [ ] { } < > ’ “ semicolon (;) colon (:) | \ and ?.
  • Page 80 Table 1. — Level Control and Processor Selection Tables Output Gain Control Input Gain Control Input 1 Output 1 40000 40100 Input 2 Output 2 40001 40101 Input 3 Output 3 40002 40102 Input 4 Output 4 40003 40103 Input 5 Output 5 40004 40104...

  • Page 81: Reference Information

    Reference Information Mounting the AXP 50 C AT The AXP 50 C AT can be mounted in the following ways: Set on a table, • • Mounted on a rack shelf, • Mounted under a desk or tabletop. The half rack width, 9.5 inch (24.1 cm) deep enclosure is designed for inconspicuous under-table placement near table microphones and line level sources using the UTS Series Under Table Shelf System or MBU 123 Low-Profile Mount Kit, available separately.

  • Page 82: Rack Mounting

    Rack Mounting The AXP 50 C AT is delivered with rack mounting brackets attached. For rack mounting, do not install the rubber feet. Use the rack ears to mount the AXP 50 C AT in a standard equipment rack. The AXP 50 C AT can be mounted on a 19 inch Universal 1U or Basic rack shelf.

  • Page 83: Table Or Wall Mounting

    Table or Wall Mounting The table or wall mounting brackets extend approximately 1/4 inch (6.4 mm) above the top surface of the enclosure. This design allows for an air space between the enclosure and the surface to which it is mounted. Mount the AXP 50 C AT to a table or wall as follows: Remove the rack mounting brackets and attach the MBU 149 brackets in their place.
  • Page 84 Extron Electronics makes no further warranties either expressed or implied with respect to the product and its quality, performance, merchantability, or fitness for any particular use. In no event will Extron Electronics be liable for direct, indirect, or consequential damages resulting from any defect in this product even if Extron Electronics has been advised of such damage.

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